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  <title>Gets a value from the opt array of a field</title>
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  <h1 class="refname">fdf_get_opt</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.3.0, PHP 5 &lt; 5.3.0, PECLv)</p><p class="refpurpose"><span class="refname">fdf_get_opt</span> &mdash; <span class="dc-title">Gets a value from the opt array of a field</span></p>

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 <div class="refsect1 description" id="refsect1-function.fdf-get-opt-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>fdf_get_opt</strong></span>(<span class="methodparam"><span class="type">resource</span> <code class="parameter">$fdf_document</code></span>, <span class="methodparam"><span class="type">string</span> <code class="parameter">$fieldname</code></span>, <span class="methodparam"><span class="type">int</span> <code class="parameter">$element</code><span class="initializer"> = -1</span></span>): <span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span></div>

  <div class="warning"><strong class="warning">警告</strong><p class="simpara">本函数还未编写文档，仅有参数列表。</p></div>
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